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-rw-r--r--include/asm-arm/thread_info.h14
1 files changed, 12 insertions, 2 deletions
diff --git a/include/asm-arm/thread_info.h b/include/asm-arm/thread_info.h
index f28b236139ed..d9b8bddc8732 100644
--- a/include/asm-arm/thread_info.h
+++ b/include/asm-arm/thread_info.h
@@ -94,8 +94,18 @@ static inline struct thread_info *current_thread_info(void)
94 return (struct thread_info *)(sp & ~(THREAD_SIZE - 1)); 94 return (struct thread_info *)(sp & ~(THREAD_SIZE - 1));
95} 95}
96 96
97extern struct thread_info *alloc_thread_info(struct task_struct *task); 97/* thread information allocation */
98extern void free_thread_info(struct thread_info *); 98#ifdef CONFIG_DEBUG_STACK_USAGE
99#define alloc_thread_info(tsk) \
100 ((struct thread_info *)__get_free_pages(GFP_KERNEL | __GFP_ZERO, \
101 THREAD_SIZE_ORDER))
102#else
103#define alloc_thread_info(tsk) \
104 ((struct thread_info *)__get_free_pages(GFP_KERNEL, THREAD_SIZE_ORDER))
105#endif
106
107#define free_thread_info(info) \
108 free_pages((unsigned long)info, THREAD_SIZE_ORDER);
99 109
100#define thread_saved_pc(tsk) \ 110#define thread_saved_pc(tsk) \
101 ((unsigned long)(pc_pointer(task_thread_info(tsk)->cpu_context.pc))) 111 ((unsigned long)(pc_pointer(task_thread_info(tsk)->cpu_context.pc)))